CARMINE IMPRESSION 
PLATE III 
PRIMARY COLOURS 
Flat tint ofyellow 
Flat tint of blue 
Fine tint of yeilow 
( horisrmxtal iuJiru/} 
Fine tint of blue 
(vertical ruling) 
BINARY COLOURS 
Flat tint of yellow 
Flat tint of yellow 
overlaid by flat tint 
of carmine 
y + b 
,ytc 
Fine tint of yellow 
overlaid by line tint 
of blue 
Fine tint of yedaw- 
overlaid by tine tint 
of carmine 
Flat tint of -yellow, 
overload- by tine tint 
of Sate 
Line tint of yellow 
over-laid. by flat tint 
of carmine 
Y c 
Fine tint of yellow 
overlaid by -flat tint 
of blue 
Flat tint of yellow 
overlaid by line tint 
of carmine 
TERNARY COLOURS 
Y*B*C 
Y+B+c 
Flat Hitt ofyellow 
overlaid try flat, tint 
of lilac arul by flat tint 
of carmine 
Flat tint of yellow 
enrol aid by- flat tint 
of blue and by line tint, 
of car-mane 
tb*c 
Y+ b+c 
Line tint of yellow 
overlaid by lira- tint 
of blue an A by line tint 
of carmine 
Flat tint of yellow 
overlaid by acne tint 
of blue and by line tint 
o f carmine 
Flat tint of carmine 
Fine tint of carmine 
( diagonal ruling ) 
Flat tint of blue 
overlaid by flat tint 
of carmine 
Fine tint of blue 
overlaid by line tint 
of carmine 
Flat tint of blue 
overlaid by bine tint 
of carmine 
Fine tail of blue 
over laid by flat tint 
of carmine 
V » b*C 
Flat tint of yeZZtnv 
overlaid by line tint 
ofhtue and by flat tint 
of carmine 
y *- B + c 
Fine tint of yellow 
overlaid by flat tint 
of blue and try flat tint 
of carmine 
► B+c 
b*C 
Fine tint of yellow 
overlaid, try flat tint 
of blue and , by line tint 
of carmine 
Fine tint of yellow 
overlaid, by line tint 
of blue and by flat tint 
of cam-ans 
Geological Survey, Canada. 
Chart illustrating a process of* lithographic three-colour printing 
for trie reproduction, of* geological maps. 
To accompany Bulletin by C. 0. Sen ecu ! 
